When we talk about dry powder medicaments, we have to think of dry powder fire extinguishers.

At present, this fire extinguisher is suitable for the initial fire of flammable, combustible liquids, gases and charged equipment. In addition to the above fires, it can also extinguish the initial fire of solid substances. . But neither can extinguish metal burning fires.

Dry powder fire extinguishers are divided into three types: portable, backpack and cart.

When using a knapsack fire extinguisher, you should stand at a distance of 5 to 6 meters from the flame edge, hold the dry powder gun grip with your right hand, and move the switch to the "3" position with your left hand. , Point the spray gun at the fire source, pull the trigger, and the dry powder can be sprayed. If spraying a bottle of dry powder fails to extinguish the fire, you can set the transfer switch to position 2 or 1 and spray continuously until the shot is finished.

When using a cart-type fire extinguisher, place its back toward the fire source and place it on the upwind side), remove the spray gun, unfold the powder tube, make sure that there is no twisting, and then raise the intake pressure lever to allow carbon dioxide into the storage tank, Lower the air intake lever to stop air intake. At this time, turn on the switch, spray dry powder, and extinguish the fire from near to far. When extinguishing oil fires, do not let the dry powder air flow directly hit the oil stains, otherwise the oil surface will be splashed and the fire spreads.

When using an external portable fire extinguisher, hold the nozzle with one hand and lift the lifting ring up with the other hand, and the dry powder can be sprayed out.

Note: The lithium-ion battery warehouse is on fire, and the dry powder fire extinguisher cannot be effectively extinguished. When the fire is large, it is more difficult to extinguish the fire.

Dry powder fire extinguisher can be filled in various types of portable and fixed dry powder fire extinguishing devices. It can be used in combination with fluoroprotein foam fire extinguishing agent and water film foaming fire extinguishing agent. Development, play a role in rapid fire suppression.

Have you mastered all these uses? I hope these methods can give you some tips and help.